身为警察的秦枫和一步步成为汉洲当地最大犯罪头目的刘天也，情同手足却又代表着黑白两极，以龙湾村附近汉洲港开发为大背景，秦枫破案为契机，逐渐搅动起几方利益集团的明争暗斗。经过数年间与当地犯罪分子斗智斗勇，最终将多起案件逐一告破的故事。
In the small village of St. Mary Mead, Colonel and Mrs. Bantry, owner of the local manor - Gossington Hall is shocked when one morning a young lady's body is found in the library. They call in the police who soon run up against a brick wall, only finding out that the body is that of a dancer in London who the Bantry's didn't even know. But how and why was her body left in the library? To find out the truth, the Bantry's call in the help of their good friend and detective - Miss Jane Marple.
我们将回到2017年5月。在巴塞罗那的福伊水库里，一名男子的尸体似乎在一辆汽车里被烧焦了。这是佩德罗（何塞曼努埃尔波加饰），一名警官。这一事件很快引起了公众舆论的兴趣，更值得调查的是，调查揭示了一个有毒关系、欺骗、暴力和性丑闻网络，涉及佩德罗和他的两名同事：他的伴侣罗莎（乌苏拉·科贝罗饰）和她的前男友阿尔伯特（奎姆·古铁雷斯饰）。
